View Full Version : double lead threading

02-23-2006, 06:39 PM
i need info about double lead threadin,on a cnc milling machine. i'm using a 4 flute single point thread mill. my nogo thread gage goes before my go. its a 5/16-18 doble lead thread. if anyone one has any info,send to ereksmart@comcast.net

02-23-2006, 10:11 PM
either your tool is oversized, or your hole diameter is too large. Either way, adjust the offset or hole diameter to shrink it down a little.


02-23-2006, 10:16 PM
Might want to make of buy a double lead thread milling cutter to make you job easier. Doc Nickels has a thread in this some time ago. I will bump it to the top so you can read it. Gary P. Hansen